Usnea mutabilis

Usnea
Scientific classification
Kingdom:	Fungi
Division:	Ascomycota
Class:	Lecanoromycetes
Order:	Lecanorales
Family:	Parmeliaceae
Genus:	Usnea
Species:	U. mutabilis
Binomial name
	Usnea mutabilis;

Usnea mutabilis is a grayish-yellowish pale green, unequally branching, shrubby (foliose) 3–7 cm long lichen commonly anchored on holdfasts on trees, mostly in eastern North America, sometimes in chaparral shurbs or pines in California.^[1]^: 212 It is darker green than other members of the Usnea genus.^[1]^: 212 The surface is covered with isolated, or clusters of, isidea.^[1]^: 212 It lacks apothecia.^[1]^: 212

The common name is bloody beard lichen.^[1]^: 212 The thick axis and medulla are dull red.^[1]^: 212

Lichen spot tests are

References

^ ^a ^b ^c ^d ^e ^f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2

[SSFGCL-1] ^ ^a ^b ^c ^d ^e ^f Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2

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